Scientists across the world agree that this is an invention of _______ great significance, _______ invention that will greatly change human life.
| A．a; the | B．a; an | C．/ ; the | D．/ ; an |
The suit’s finished, ___?
| A．doesn’t it | B．isn't it | C．haven't it | D．hasn't it |
This hotel can provide delicious food and comfortable room ___ all the guests.
| A．with | B．for | C．to | D．about |
--Can I get tickets for the conert? --___,Sold out
| A．You can | B．Yes | C．All right | D．Sorry |
The doctor tried his best to save this patient.At last he began ___.
| A．to come | B．to come to life | C．to come up | D．to come up to |
He was sitting in an armchair, ___ a novel
| A．reading | B．read | C．was reading | D．to be reading |